• The US Army is applying lessons from Ukraine and Iran to better prepare its air defenders.
• Forward-deployed air defense units are bringing back lessons from combat.
• Combat simulations are evolving to reflect new battlefield threats and tactics.

Intense missile and drone attacks in global conflicts are showing the US Army how it needs to train its air defenders, as well as how to protect them from threats, Army officials said.

Lessons on protecting MIM-104 Patriot surface-to-air missile systems and crews are coming in, and Army leaders say those observations are being quickly incorporated into training to help troops keep pace with evolving threats and tactics.

In their war against Ukraine, Russian forces have hunted Patriot batteries and other air-defense systems while also trying to overwhelm them with complex barrages of one-way attack drones alongside ballistic and cruise missiles, providing lessons in mobility, concealment, deception, and dispersal. The war with Iran, meanwhile, has exposed American and allied air defenders to the challenge of defending against large-scale drone and missile bombardments while managing interceptor stocks. The Army is learning those lessons, officials say.

Lt. Gen. John Rafferty, the head of Army Space and Missile Defense Command, told reporters at the Association of the United States Army conference last week that air defenders have been "probably the most aggressive community in the Army for learning lessons from Ukraine," with an emphasis on survivability and the protection of critical assets.

"How have we embraced those observations from Ukraine and then put them into action?" Rafferty said this was one of the first questions he asked when he took command earlier this year.

He said that he has seen how command teams have "put those lessons in place and how they are taking steps to protect their soldiers, to protect the critical systems of Patriots and sensors, protection, camouflage, deception, all of that."

Officials with the 32nd Army Air and Missile Defense Command told Business Insider that observations and lessons from Ukraine are shared with its headquarters at Fort Bliss, Texas, where training materials for air defense soldiers are updated. The information is also shared with the larger Army and industry partners.

The 32nd Army Air and Missile Defense Command recently transferred to Army Space and Missile Defense Command and is tasked with missile defense planning across different regions. Its responsibilities include both active defenses, such as intercepting incoming missiles, and passive measures, such as camouflage and dispersal, as well as coordinating intelligence and command-and-control.

Rafferty and other officials said that the US war with Iran, which has stress-tested American air defense units, is providing valuable data on air defense. According to Rafferty, roughly 2,500 soldiers from his command are deployed to the Middle East, including both air defense formations and space specialists.

He said that roughly 25% to 30% of the command's air defense formations are deployed. These forces consist primarily of Patriot units and Terminal High Altitude Area Defense anti-ballistic missile defense crews.

"We're taking the things that we're seeing in the Middle East and feeding it back to the other brigades in the formation," Col. Matthew Ingils, deputy commanding officer for operations with the 32nd Army Air and Missile Defense Command, said.

Lessons include "the types of threats" as well as "the scale, the scope, the complexity of what we're seeing," and then training new formations on that insight so that individual soldiers who join an air defense unit can quickly catch up.

The conflicts in Ukraine and the Middle East present different challenges, giving the Army a broader range of lessons to incorporate into its training.

To prepare to counter new threats or employ new tactics, soldiers use combat simulations that are being updated with lessons from the Middle East and Ukraine.

Current conflicts have shown the Army and broader US military that air defenses are essential for intercepting missiles and drones, protecting critical assets, and challenging aircraft.

Heavy expenditure of air-defense interceptors and other munitions, however, have raised concerns about whether the US is sufficiently stocked for future fights.

At the same time, air defenders themselves have become priority targets for enemy forces, making dispersal, camouflage, and mobility increasingly important to their survival.

The Houthi attack mixed together suicide drones, cruise missiles and ballistic missiles. Because these weapons travel at significantly different speeds, the drones were launched first, followed by the cruise missiles and lastly by the ballistic missiles. Reports say the entire attack on October 10, starting at around 3PM local time, lasted around 45 minutes. The […]

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Al Mayadeen | September 30, 2026

The US-Israeli war on Iran has exposed a widening gap between Washington’s promises to protect its allies and its ability to sustain that protection, with expensive missile interceptors being consumed faster than American manufacturers can replace them, The Atlantic reported.

In an investigation titled “The THAAD Delusion,” Christopher Leonard argues that the Terminal High Altitude Area Defense system became a cornerstone of US security arrangements in the Middle East despite being developed for a more limited battlefield role.

Iran’s ability to maintain missile attacks has challenged the assumption underpinning that role: that American forces would survive an opening barrage, then rapidly destroy the launchers responsible.

Instead, a prolonged conflict has placed mounting pressure on interceptor supplies, exposing weaknesses in US military planning, weapons procurement, and industrial capacity.

A missile shield built around a short war

According to the report, THAAD was originally intended to protect critical military deployments during the initial phase of a conflict, allowing US aircraft and naval forces time to respond.

Washington subsequently promoted the system as a central component of broader missile shields for regional allies, including the United Arab Emirates and Saudi Arabia.

The distinction has become consequential during the war on Iran. While THAAD has intercepted ballistic missiles effectively, Leonard writes that Washington neither accumulated enough interceptors for sustained operations nor established the manufacturing capacity needed to replace them quickly.

US interceptor stocks depleted by sustained warfare

Drawing on estimates from the Center for Strategic and International Studies, the report says US forces used more than 150 THAAD interceptors during the 12-day war in 2025 and another 190 to 290 during “Operation Epic Fury.”

CSIS estimated that approximately 250 interceptors remained in the US stockpile. The report notes that additional deliveries could affect those calculations, while Washington has not disclosed its remaining inventories.

The depletion extends beyond THAAD. The investigation also described heavy consumption of Patriot interceptors and offensive weapons, including Tomahawk and JASSM missiles, placing pressure on multiple parts of the US arsenal.

Iran’s sustained attacks strain expensive defenses

The investigation identifies Iran’s combination of ballistic missiles and comparatively inexpensive drones as a major challenge to American defensive planning.

THAAD interceptors cost about $12 million each, according to the report. Repeated Iranian missile launches therefore impose substantial financial and logistical costs even when interceptions succeed.

At the same time, Shahed drones, which the article puts at $20,000 to $50,000 apiece, require separate defenses because THAAD cannot intercept them.

This combination forces defending militaries to confront different threats simultaneously while managing limited ammunition. The report describes regional forces using helicopters and costly air-to-air missiles against drones as pressure on their defenses increased.

Leonard’s central argument is that interception accuracy alone cannot deliver the lasting security Washington offered its partners when the attacker can sustain successive waves.

Industrial weaknesses slow replenishment

The article traces the shortage to years of budget decisions that favored major weapons platforms over ammunition reserves, alongside a concentrated defense industry dependent on vulnerable networks of specialized suppliers.

THAAD missiles require intricate assembly and components sourced from hundreds of companies. Expanding production involves increasing capacity throughout that network, rather than simply adding workers at a final assembly plant.

Pentagon assessments cited in the report found that substantial increases in production for several missile systems could require billions of dollars and take years.

The investigation also scrutinizes defense contractors’ spending priorities. Lockheed Martin distributed $6.8 billion through dividends and share buybacks in 2024, while RTX returned $3.7 billion to shareholders, even as industry representatives argued that factory expansion required advance funding or long-term government contracts.

Washington’s protection promises face scrutiny

The implications reach beyond ammunition shortages. US weapons sales helped bind allied militaries to Washington through shared equipment and reliance on American supplies, the report notes.

However, delayed deliveries and competing wartime demands have prompted some partners to seek alternatives, raising questions about the reliability of those arrangements.

In the Middle East, Leonard argues, attacks on infrastructure and military installations have also challenged the perception that hosting US forces guarantees security.

Stephen Wertheim, a senior fellow at the Carnegie Endowment for International Peace, told The Atlantic that the consequences could reshape Washington’s regional position.

“We could be moving away from a Middle East that can be fairly described as being an American-dominated region,” he said.